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Re: [Question #701934]: How do I keep the particles still?

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jan Stránský <question701934@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 24 May 2022 07:55:52 -0000
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Question #701934 on Yade changed:
https://answers.launchpad.net/yade/+question/701934

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello,

> state.blockedDOFs='zxy'

this blocks degrees of freedom from being influenced by interactions.
But, it still allows to set velocity and has no influence on current velocity.
So the result is that the current velocity is preserved (it is not influenced by interactions any more).

To immobilize a particle, set zero velocity and angular velocity
b.state.vel = (0,0,0)
b.state.angVel = (0,0,0)

You can use predefined function
calm() # [1]
to immobilize all particles

Cheers
Jan

[1]  https://yade-dem.org/doc/yade.utils.html#yade._utils.calm

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